Hermetic sealing apparatus.



w. A. LORENZ & w. H. HoNIss. HEBMETIG SEALING .APPABATU V APLIOATION FILED JAILZG, 1905.

` Patented Dec.8,1908. 10 IHREN-SHEET 1.

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v .mvg 5 www w. A. LORENZ & W. H. HoNIss.

HEBMETIG SEALIN G APPARATUS. APPLICATION FILED JAN.26, 190s.

Patented Dec. 8. 1908.

10 SHEETS-SHEET 2.

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NNN www NNN QNN w N uns SN b2 mY Q Mine s s es:

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w. A. LOREZ a w. H. HoNIss. HBBMBTIG SEALING APPARATUS.

Patented 1390.8, 190s.

` v APPLICATION FILED JAI. 26, 1905. 905,894.

f10 SHEETS-SHEET 3.

11A-ess es:

w. A. 'LORENZ w. H. HoNIss.

HBEETIC SELLING APPARATUS.

wn s wm n Mu Wil.. mi I, n

APPLIUATIOI FILED JALRG, 1905.

Islamic.. mn. Mmmm n w. A.' LORENZ & w. H. HoN'Iss.

HBRMBTIG SEALING APPARATUS.

APILlGATION FILED JAILZG, 1905.

Patented Dec.8,1908. 10 SHEETS-SHEET 5.

/fa Y W. A. LORENZ & W. H. HDNISS. Hnnnn'nc sBALINo APPARATUS.

APPLIOAIION IILIJD'JAR 26, 17905. Patented D 8 10 SHEETS-SHEET I 11mm/tors:

mrs rmns. mc.. Lum., ummm, n c.

W. A. LORENZ 6r W. H. HONISS. HERMETIC SEALING APPARATUS APPLIUATOI FILED JAN. 26, 1305.

:Patented Dec. 8,1908.

. 1o sums-sum '1.`

UQCQQQQMQ@ Witnesss:

W.VA. LORENZ W. H. HONISS. HERHETIG BELIIG APPARATUS.

nrmouml Hum un. ze, 1905.

Patented Dech 8,1908..

10 SHEETS-SHEET 8.

W A LORENZ 6r W H HONISS HERIETIG SEALING APPARATUS. l l APPLIUATIOI FILED JAI 26, 1905 905,894.

*Patented Dec. 8,1908.

10 SHEETS-SHEET 9.

W. A. LORENZ du W. H. HONISS.

HERMETIG SEALING APPARATUS.

APPLICATION FILED JAILZB, 1905.

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sTArEhsinlrnnr oFFroE.

WILLI-AM A. LORENZ AND' WILLIAM n. H ,NIS

' 0F ONE-HALF TO BEECFLNUTl PAOKI j pGAORPORATION OF NEW YORK.

` S, OF HARTFORD, CONNECTICUT, ASSIGNORS TIG :G Ohi'l'SANY, OF GANAJOHARIE, NEW YORK, 'AV

HERIMETC SEALING APPARATUS.

- lwhom 'it may concern:

Be it known that we, WILLIAMA. LoRNz WILLIAM H. Homes,N citizens of the UnitedStates, and residents of Hartford, in the y county of Hartford and State of Con- `-necti c1'1t, have invented certain new and use? `fullmprovements in Hermetic Sealin A paratu's, of 'which the following is a-ful c ear, and exact specification.

` invention relates to im rovem'ents in 'appara-tus for exhausting an hermetically sealing jars, cans, arid similar receptacles,

laildparticularly relates to that class ofap- -paratusin which the seal is made automat-` belly bythe readmitted atmospheric pres- 'sure after the desired degree of vacuum has been obtained. After thel jars Vhave been illed and the gaskets and caps placed in position thereon, they are put into a sealingchamber or retort, from which the air is eX- liauste'd until the desired vacuum is obtained, after which the caps are ressed down iirmlyupon the gaskets by mec anical devices, the a1r readmitted tol the jars,l the pressure of the mechanical devices released, and the jars removed from the sealing chamber It is the object of the present invention to provide means whereby a large number of place by the action of jcontrol ofthe operatorfand re 40 him time during the exhaustion of .the gaskets' and caps.A

little 'of his time to manipulate, t

i. `entrance intovthe chamber.

n sition.v v

with the door closed. of the retort-With the door open. Fig. 4 is a f A further' object is to provide means vwhereby the sealing apparatus may be readily removed from within the chamber for eX- amination and re airs. n

Figure'lis a side view of the'j ar chamber or retort and a portion of the turntable, and' j .able distance therefrom is avturn' table (Figs.

shows the door ofthe retort in its closed po- Fig. 2 is a front view of the retort Fig. 3 is a front view vSpecification of Letters Patent. Application mea Janaryze, 1905. serial No. 242,739.

. partly pushed into the retort.

Patented Dec. s, 1908.

side viewof the retort in section on the line 4 -8 of- Fig. 3, with the'valve in section on thefline 9 9 of Fig. 3. "Fig 5 is a side view ofthe front end of the `retort with the cam handle and the door in their open position.

Fig.- 6 is a Afront view of the retort without.-

the sealing carriage, in section on the line (f-6 of Fig. 4, with thel door open and part of the door carriage broken away. Fig. 7 is -a side view partly inA section on the line 1%-8 of Fig. 3, the valve being taken on theline 949 of Fig. 3. Fig. 8 shows. a `ortion of 4Figf? with the valve in position Fig. 9

1s aside view of the valve position C. Fig. 10 1s an enlarged front view of two of the pressing devices m section on'the line 10-11 of Fig. 7, the pressers being shown intheA eX`- hausting position.' Fig. 11 is a front view similar to Fig. 10 and shows thepressers in f their sealing position. Fig. 12 is an end view of the turn table` without section on the line 12-12 of Fig. 14. Fig. 13 is a to view of the turn table with a loaded sli e on 4one side and another .slide Fig. 14 is a side view, and Fig. 15 an endview of Fig. 13.

trays or jars, in

` Fig. 16 is a side view of thel turntable with the sealing carriage drawn outupon it. Fig.

`17 is a side view of the turntable having thereon a slide and a filler with small jars on the. tray; the turn table being shown in section o n the line 17-17 of Fig. 12. Fig. 18 is an end view 18-18. Referring to the drawings, the exhausting chamber 26, 4termed for convenience the retort, is preferably a cylindrical or tubular of Fig. 17 in section n the line shell 31,A the inside ot it forming the jar chamber 33, wherein a number of jars may be simultaneously `placed for purposes of eX- haustion'and sealing. \The retort rests upon the tie bars 28 and 29 which are supported onfthe side framesor legs 27. 30, of the retort is closed, While the front end may be' opened to admit the jars, and .is

closed during exhaustion by the slidin door The rear end 151. Connection with a suitable eX aust-: j

ins pum throu h t e p1 e 251; Y In ront oit e retort-and pflaced at a suit# 12 to 15) provided with two slides each one of which is capable of holding the number of jars necessary to iill the retort (in. this case or device," not shown,` is madev as supports upon which the table may rotate. The center bar 41 is pri-vided also l with a stud 46 (Fig. 12) which serves as a side guides 53,

pivot for the table. The turn table itself comprises-a bottom plate 51 to which are secured the four cross beams 52 and the four To the center of the bottom plate 51 between the central two of 'the side guides 53 isy secured the swivel bearing 54 (Figs. '12 and 13) into which' fits the pivot stud 46, which thus holds the table in Iplace yand serves as a support for its centra section, the bottom 51 resting also on the wheels 45, so/that the table is free-to rotate around thej/stud as a center. -This particular constr ction of the supporting and. swiveling devices may be modified in many other well known ways. `The front cross l'car 38 is provided with legs 601m which is journaled'the rod 61 (Fig. 15). This rod has secured to its outer ends a pair of latches 6 2 and 63 having arms- 64 and 65 and tails66 and 67. These latches serve to lock the turn table when either of the slides is in -alinement with the jarchamber (shown in Figs. 13, 14 and 15) as one end .of the turn table is then bef; vtween the two latch arms 64 and 65, and is thus prevented from swinging in either di rection. 'l he latches themselves are stopped in this position by the in 68 (Fig. 14) against which the arm 64 rests.

. "In the inner sides of the side guides 53 are secured the bars which are rovidedwith notches 57 forming bearings 'or thetrunnions of the rollers 56. Two slides are adapted to rest upon and slide on the rollers 56 between the side guides 53 on either sidev of the turn table. Each' of these slides is formed of va bottoni plate 76 (Fig. 15), a top plate 78, and an intermediate piece 77, the two plates and the piece 77 being screwed or otherwise fastened together to Iorm an in tegral structure. A xhandle 79l secured to one end of the bottom plate76 provides a convenient means for moving the 'slide upon Athe rollers 5,6, the st op pins 80 (Figs. 13 and `15) limiting the movement inone direction. 'The edges of the top plate 78 (Fi s. 14 and 15) arelient up at the sides and en( sin ol'der to retainV 1n place the jar trays which rest upon it. The jar trays are preferably made to hold .twelve jars, requiring therefore five of these .tra s to ll each slide 7 8, and when the slide is illed each tray occupiesa definite position'. thereon. A

Each tray is made'up of a'bottom plate83 'to which are secured four posts 84 joined at the top along each end of the try by bars movable sealing carriage;

' in place.

carriage.

ing operation the slide may beine 'ed back ontothe turn tableand thel'atter turned half tray open. The locator is provided with holes which approximately fit the bodies of the ars, and it rests upon the bars S5 but is not fixed thereto, its ends being turned over and fitting notches Silit-'r the ends of the bars S5 so that when once placed in position it cannot move out of place until it is lifted. The ars J are placed in the tray thus formed, with their bottoms resting on the plate S3 and their bodies standing in the holes in the locator S6 which thus locates each iar in :i definite position Ion the tray, and therefore on the slide, and keeps it also frein contact with its fellows. Handles 87 by which the trays may be convei'iiently lifted are secured to each bar A leveler 04 is preferably placed-upon the caps G of each tray-full of jars to level and otherwise bring into place any of the caps which may be sligluly disarranged before sealing. lt servos also to prevent subsequent tilting of the caps during the sealing operation, being preferably left upon the caps during that time.

The turn table with its supporting frame is located in 'front ofthe retort in such position that when the table is held stationary between the latch arms 64 and 65 one of the slides will be in alinement with the jar chamber of the retort 26 while the other slide will f come into similar alinenient when the table is swung half way round so as to be again held stationary by the latch arms 64 and 65.

The bottom of the interior ofthe retort 33 is provided witlra flat base 32 which supportsv a pair of tracks 101 upon which rests the re The carriage base 102 has wheels 103 which rest on the tracks 101, and have their axles journaletl in lugs 104 appurtenant to the base 102. The top surface of the base 102 is level with and in alinement with the' slide bottom 76 when the turn table is in its stationary position; and the slide 76 Vmay therefore be moipd upon the rollers 56 into thejar chambeiigi and on to the carriage base 102 where it rests during the sealing operation, the. space' between the base sides 105being of' suitable width to properly guide and retairithe slide A roller 106 supported in lugs 107 on the carriage base facilitates the ino-fing of the slide. A le 'eling' bracket 141. (Figs. 3, 7 and 8) is secured to the front'of thescasing 111 and serves toele el any disarranved ca s as'the j ars pass under its lower be ieed Sidi.

-A stop 110 (Fig. 7) at the rear end of the A'llhis position is indicated in Figs. 13 and 14. A

carriage base limits the mo'ijement of the slide in that direction, and serves also to lo.-

cate it in a definite position on the sealing i After the conclusion of the seal Way round, thus'bringing the other slide into 85 up'onwhich rests the separator-or locator position te be'mofed into thel jar chamber.

86, leaving the obn'osit'e lateral sides of the The air pressure devices which operate to seal the jars, are situated above the base 102 andsupported by it on the posts 113. The

f easing 111 '(Fig'. 10) ol thepresser chamber inder 121 secured to the wall 118 and divided stantially-do'uble what it wou d be if theby the partition 122 into two open-ended chambers '123 and 124 containing pistons 130 and 131 respectively. The central art of the partition 122 forms a bearing or the piston rod 125 which has secured to its upper and lower ends the two pistons 130 and 131 15 respectively. A spring 132 is preferably provided to hold the istons in their upper position as shown in '135 connects the upper part ofthe chamber 124 above the .piston 131 with the presser chamber 112, and admits to the piston 131 the saine pressure which is in that chamber.

A.duct 136 connects the bottoni of the upper chamber 123 below the piston 130with'the jar chamber 33, andinsures the same pressure or vacuum below the piston 130 as exists in the jar chamber 33.

The distance between the piston 131 in its up er position, and thev'base 102 is' such that tie jars will pass under it with a little room to spare as the slide 76 moves in'or out (Fig. 10). The relative locationof ,the is-v 'tons 131 and the j ars on the tray is such t at each jar stands directly under 4a piston when the slide 76l is pushed up to thestop 110,. It is the function of these presser pistons 130 and 131 to force the caps G down in a level osition'upon their respective' jars after eX- l'iaustion has taken place and before the air is admitted to the jar chamber 33,A thus pre. venting the entrance of any air linto the in sidevof the jar through the closure joint. be-

vfore the cap is finally held in place by the atmospheric pressure.

The pistons 130 and 131 are movedv downward by admitting'the vair tothe presser chamber 112 before it en ters the jary chamber 33, thus establishing atmospheric pressure on the upper surfacel n e a vacuum still exists below 'eachfof Ithem. Each pair" ofthepistons *130 and 131 W-hi of istons 130 and 131 being secured toget erlby the iston rod 125, act together on the eapG an exert upon it a ressure subcylinder 12,1l contained but fone piston. Ars

-the yinside diameter of the presser c linderis nearly-as great as .the diameter of t e cap G, the pressure exerted'upon the latterbythe two-pistons 130 and 131 is nearly double '65 joint made between tliedoor and the mouth ig. 10. An air ductl 34 of the front end of the` retort'.

Y seeuredto the top of the door 151.

end 'of the shell or retort 26; The doois shown in its open position in Figs. 3,4 and V6. It is mounted to swing ya short distance to and from the ront'of the retort, and to roll or v slide'aside edgewise, being supported on a 'iol secured together. The base 153 is rovided with wheels 156 which travel ontie track 152. Stops 193 and 194 are secui-'ed'to the track -1 52 at either end, and limit the travel oi the carriage in both direc-tions The track -152 is secured to the lower Jfront bar 176 supported on the front tie bar 28. The top of the carriage is steadied by the rollers. 185 (Figs. 3 and 4) vcarried by'the'to 'bar 155. These rollersiit one on each side oy the upper O'uide 'rail 184, which is supported by the ront bar 178. The latter is secured at its ends to the uprights 177 extending from the lower front bar 176, and is secured atyits middle by means of the lug 179'to the flange The door 151 is sus ended. from the top bar 155 by. means of t ie links 160 (Figs. 5and 6) which are pivoted at, their up er ends to the lugs 165 by the pins 162, anv at their lower ends, by means of the pins 161, to the bracket 159 172 extending from the pivots 161 to studs 173 on the posts 154 tend always to draw the door awayfrom its seat on the mouth ofthe retort, towards its supporting carriage. A bracket 168 is secured to the loweredge of the door 151 and is providedwith 4a projection' 166 on the carriage base 153. A guide rail .-186'is secured to thebar 176 and confines the lower part of the door 151 by means of a tongue 189 on the bottom ofv the 4lower bracket 168', the tongue 189 being in front of the guide rail 186 when the door is clear of thel retort entrance. By this arrangement the door is always kept away from the front `of the retort in its edgewise movements as the springs 172 act upon the top to hold -it away and the guiderail 186 contines the bots lang`e34 as the door moves to and fro is there-by avoided.

Springs. l

169 which its'loosely between a pairof lugs torn. J The danger of injury tothe gasket y 1157 by scraping it against the front of the The bar 176 is provided with a pair of lug-s I 201 (Fig.l 6) iin' which is journaled a shaft 202 which has secured to its inner end a grooved lockingdg 203.' A similar grooved dog 209 is secured to the inner end of the shaft 208 `iournaledin lugs 207 in the upper bar 178. The two iogs 203 and 209 are so located that when'the door 151 is rolled into place infront ofthe retort, the tongue 189 in the lower door `bracket 168 and asimilar tongue 190 on the upper door bracket :159 will pass into the y grooves ofthe two dogs 203and 209 (Fig. V4), the lower tongue 18,9 being of sufficient l length to' allow its front end to enterA its l A ocaso@ outer ends arms 212 and 213 to the outer of which are pivoted connecting rods Qland- 217. The. other ends of theconnesting rods are held between the two is'lrs l 220 and 221' by pivots 219 and 225 located onoplpositesides of the disk center forming a ecb ar knuckle joint or toggle joint connecn. Y rllhe disks are ivoted by their central 55a. 222 to a pair 0 1inks223 Wlose @im ends are pivoted on a bracket 224 secured toI Y ,ejifont tie bar`28, so as to provide a iioat- "v support for' the toggle, whereby the latir automatically divides. the force or' its ",ush equallyv upon the shafts '202 and 208. i,l`he outer dlsk 221 isv furnished with a-lever 227 havin a handle 228 on its free end. By swinging t e lever 227 over towards the front oifthe retort from the position shown in Fig. 5 to that shown in llig. 1, the two shafts 208 202 are rocked in a direction'to carry the lWo dogs 203 and 209 towards the inout-h of the retort, thus forcing the door 151vn and its sket against. its seat around the mouth'oi e retort, so as to eilectually seal the en- .trance thereto. This method of suspending the door, and this arrangement of the toggle 1find its connections therewith, constitute an Lai'ticulation by means-ot which vthe strains are automatically distributed evenly,A so as L10 to exert the same amount of pressure at the topand'bottom of the door.v in this arrangement, the Weight of the lever 227 and its- ,connections' with the shafts 202 'and 208 tend tn press the door inwardly at the bot-- tom and outwardly at the top .andin order meer.' act this tendency those parts should be co2 lierweighted or counterbalanced. ln the'present instance this is accomplished by means of the spring 236 attached at one end 'to the lower arm 213 and at the other end to the tie bar 28.

'On account of variations in the mechan ism, and in the thickness oi diierent gaskets,-

as Well as inthe thickness of the same gasket due to repeated compressions, means are provided for adjusting the parts so as to secure the desired amount oi pressure 'when the toggle is in its door-closing position shown in Fig. 1. ln that position theconnecting rod pivots 219 and 225 are preferably carried slightly past their dead centers, so'that the,

pressure u on'the rod tendsv to turn the lever 227 still further toward the iront, this tendency being met by the stop pin 233 in the @t armr232 appurtenant to the'inner disk 226,

which stop pin engages the upright post 177 as shown in Fig. 1', to revent an further movement toward the left of the ever 227 when the latter is in its locked 'or left hand position.v I

In order to further distribute the rassure uniformly upon the joint" between t e door' and the retort, the pressure is transmitted to' the door by 4means of the brackets 159 and 168 (see Fi '6), the central portions of yvhich are engagle by the dogs 209 and 203 respectively. hosev brackets are ,secured to the door-'151 at their ends only',- clearances or recesses 163 and d70 being formed between the ends so that the central part of each bracket is not in' contact with the door. )This arrangement enables the pressureof the dogs 203 and 209` to be exerted against the door at four separated spots 164,164 and 171,171. The links -160 from which the door is suspended are preferably so located that'they ang approximately perpendicular when the door is locked, thus carrying it Asquarely against its seat, in a direction substantially at right angles to the planes of the meeting surfaces.

The exit and entrance of the air for the exhausting and sealing operations are controlled by a valve comprising a tapered lug 254 (Fig. 4) tittedinto a casin 252 wliich rests uponthe base 272'se'cure to the left eiland leg 27 oi the retort by means of the .bracket 25 Four openinvs or ports 255, 256, 257,' lead lthrough t e casing. Into the po 255 is fitted the pipe 251 which leads to the exhaust pump. Into the port 256 is fitted the pi e 26g@ leading to the presser chamber 112 y melius of the unions 267 and 268, iiange 269 and ntipe 137 (Fig. 7).

l lnto the port 257 is fitted theplpe 263 leading to thev jar chamber'33. The port 258 connects with the atmosphere through the valve vbase 272 (Fig. 4), which is made hollow and has a cover 273 hinged to its under side by means ofthe pin 274 (FigI 3).- The cover isl held up in place by the'head of theT bolt 2,80 which supports its outer edge b means of the notched ear 281 (Fig. 1), the body of the bolt 280'being fitted to swivel in the valve base 272 so that a half turn of the bolt re.

leases the cover by ermitting the notched ear to pass by the T ead. The cover 273 is provided with .a piece of Wir'e gauze 276 or other 4suitable material which serves to exrespectively.- Position A (Fig. 7)is the regu- 'lar exhausting position of they valve," and when invthis position-'the port=285 coincides C and D, and are shown-in Figs. 7, 8,'9rand 4,

ocaso-1 with the port 255, the port 287 coincides with the port-256, the port 288 coincides With the port 257, While the port 258 is closed. The

air exhausts from the j ar chamber 33 through theplpes 263, to the pipe 251 which leads to lthe exhaust pump. The air' also exhausts 'ted .to the presser chamber 112 While being excluded from the jar chamber 33.

@imposition the port 256 coincides With the :port' and lthe port 288 coincides With the p ort 258, While the ports 257 and 255 are Closed. The air passes through the pipes 264 '-'lland 131 down upon the jar caps (J .1137 to the presser chamber 112, and is thus permlttcd to .force the presser pistons 11,);as the -vacuum is still retained in the j arqhmher'33, and in that part of the cylinderv 'chamber 123 which is below the piston 130.

'In position C (Fig. 9) air is admitted to the jarchamber 33 Aas Well las to the presser 1 chamber 112. In this position the port 285 coincides with the port 256, 'the port 287 coincides With the port 257, While the port 288 still coincides with 'the port 258, the former port being made with a wide opening in order t0 keep it in coincidence with the port 258 during the movement of the plug 254 from position B to position C. The air passes to the 'jarchamber through the ports 258, 288,

i 287 and' 257 and the pipe 263.

l rests, and these arc portions'termlnate in pe- 4 In position D (Fig. 4) the air exhausts only from the presser chamber 112, Without exhausting .from the jar chamber 33. This causes the air pressure in the j ar chamber to lift any of the pairs of presser pistons' 130 and 13,1 which mayhave failed to return to their upper positions through the action of the' springs 132. The ports 257 and 258 are now 'c osed While the ports 256 and 255 are in communication through the ports 288 and 287, these c: inccting ports of the valve andthe casing overlapping each other in this position to a limited extent -only, as the small amount of exhaustion required necessitates but a smallpassage. s

The plug 254 is moved from one 'position to another by means of a lever 292 (Fig. i) secured to the stem 294 of the plug and having a 'handle 293 on its outer end. 1A latch 297 is pivotedon the lever 292 by thebolt 293 and carries on its outer end a handle 239. The inner end of the latch forms a pau-l 360, Which rides on the edge of an indexing plate 301. The latter is secured .to the valve base 272, and has av hole in its center through which the Vplug stem 294 passes. The edge of the plate 3D1-is in the contour of a number of concentric arcs, upon which the pawl 300 ripheral shoulders A, B, C and D which, by

engaging the end of the pavvl 300 arrest the (rig. f

movement of the piug and indicate its posione position to anotherv almost instantly and with the absolute certainty of arresting vthe movement whe'h the vaive reaches the position desired. The arrangement possesses the further advantage of always visibly indicating the exact position .of the valve.

ln order to permit the presser carriage 102 'to be removed froi'nthe retort for examination or repairs, a pair ,of 'tracks 326 (Figs. 15

.and 16) aresecured to the turn table cross bars 38, 39, 40 and 4i. A pair of removable tracks 327 are provided toestond from the inner ends of the tracks 326 to the outer ends of the tracks 161 in the bottom .of the jarv chamber 33, the tracks 327 being supported. by the bar 39 and the jar chamber iioor 32. These removable tracks 327 are placed in position only when it is desired to Withdraw the presser carriage E02 from the jar chamber/3 at which time they serve to support the carriage 102 between the retort and the turn table legs so it can be rolled on the Wheels 326. The turn table is irst removed and the 'union unsere-We d, thus permitting the represser chamber ma#Y be made in two or more' sections connected as shown in Fig. 16, by means of an an' pipe The consecutive operationoi the parts in sealing a set of jars is as follows: he ps clged jars d with their caps and-gaskets in position are ioaded upon the trays 8.3, after Wh ich the levelers .94v rare placed on the caps.VA The trays are nov.r .placed upon the slide 78, which is assumed to be before the open end of the retort 26 and in alinernent with the jar chamber 33. Also, the door 151'is assumed to be one side of the retort opening as shown in Fig. and the valve is assumed to be position D, 4. The slide 78is now pushed on therollers 56 into the. chamber 33 over the roiieru'zt, the side guides 53 guiding it to enteg" properly between the base sides 105 (Fig, i4). The ini'ivernent of the slide 78 isi 'continnti untii the forward end is against the stop 3.16, at which time each vjar' .163- from the iar chamber 33 to the tracks los ilo

Vvalve lever 292 lFigs. 1 and 7,V .the pawl end 300 stoppingdogs and 203 towards the retort, carryng' with them the door tongues 190and 189 thus swinging the; door 151 on the suspending links 101) and forcingv it squarely against the iront flange 34 of the retort, the gasket 157 insuring an airv tight closure. T he is now moved to position A,

`ainst the shoulder A. Theiairlnow exhausts from the jar chamber 33 through the pipe 263 and from the presser' chamber 112 through the ipes 137 and 264. As soon as the properv egfee of vacuum has been obtained, the valve is moved to position B (Fig. 8) the movement being'arrested at the proper point-by the pawl end 300 encountering the shoulder B. The air enters' through the openin'g in the valve base 272 whence it passes throrgh the pipes 26e and 137 to the presser chamber' 112 (Fig. 10) where it acts on the presserpistons .130; through theducts 135, on the presser pistons 131, as the vacuum still exists below each piston. All the pistons are thus driven downward (Fig, 11) upon their respective jar caps G, with a degree. of pressure much in excess of that ofthe ordinary atmos heric pressure, this er.-n cess depending on t e degree of vacuum obtained, and on the combined pressure area of lthe two pistons 130 and 131 relative vto the and 287. This reduces theatmospheric presown u pressure area of the cap G. The valve 1s then moved to position G ('Fig. 9) the pawl end 300 being raised by the lever 297 teclear the shoulder B and riding-over the eri her 1 of the plate 301 till arrested bytt e s ou der C. In this position air is admitted to the jar chamber 33 through the valve base 27 2', and -the pipe"263', the presser chamber 112 being still in communication'with the atmosi phere but through the port 285 instead of the on the jars by the presser pistons 130 an 131,l no 'air can enter thev jaws through theirclosurejoints. As the lpres-v sure exerted by the pistons 130 and l131 is gradually relaxed through the equalizing of' the pressure on both'sides of the pistons, the springs 132 return the pistons to their upper positions, and tte atmospheric pressure retains the caps G in their-pushed down' position. .The valve is now turned to position D (Fig. 4) thus permitting the presser chamber 112 t'o exhaustthrough the vvalve ports 288 'sure on the upper sides of the pistons', and if it happens that any of the pistons have failed the atmospheric pressure .on tneir under The caps l(if being already forced eoasee ars being now sealed, the door 151 isreleased by throwing the lever 227 back to its original position UT ig. 5), the action .of the dogs 203' and 209 drawing the' door -away trom the flange 34 or" the retort. is noW rolled back against the sto 194 to the position shown in Fig. 3. The s ide 78 with its load of sealed jars is then drawn out of Ythe jar chamber 33 on t'o the rollers 56 and up against 'the stops 80. The latch 64 is then turned downward carrying with it the ,latch until'both latches rest in the position shown in Fig. 16 with their tails 66 and 67 in er g gement with the lrgs 60. The turn tai/1e is now swung around until its other end is between the latches 64 and 65 which are then turned up to keep it in that osition, the other slide 78 beingnow in a with the .jar chambee; This 4other slide has received its lo ad of jarsiduring the sealing of the previous lo'ad on'the other slide, and may nw be pushed into the 'ar chamber and the sealingzprocess allowedv beforei;`

In der to adapt the agi aratus for sealing ars olvarious `heights, liars v34:1, (Figs. 17 and 18,) of suitable height may be employed. The filler 341 is of the proper size to tit the slide top plate 78r the Iupturned `edges of which keep it in position. 'The filler is provided with a top late 342 having upturned edges similar tot edges-serve 'to hold the tra place. By the use of such llers the ca s'H 'of short jars K are raised to the pro er eifel for bringing thorn to a suitable heig the pressers 131.A

ter to arrange the jarsas close together as possible in order to get as many` ot them as possible into a givenspace, thus reducing as fares possible the space which must be eX- hausted in order to seal jars. 1n the present arrangement, both Athe desired coinpactness of. arrangement and the .augmented pressure are secured, by employing a plurality of istons for' each jar, placing lment, This enables the jars to be placed' closelytogetherin trays,y While still employ ing aV pressure which maybe -twojor more' times the h ere-u ont eca.

P' Thesi p C that ttie awl the shiflidi A made' epass:A first 'lifted by the handle 299' against-.1th action ofthe spring'307. This requires definite effort on the i therefore causes a de ay in the movementof the vvalve from the exhausting position Al to sides will at once force them to do so. The' inement to proceed as it under' lt is desirable in apparatus of this characoulder B on the plate 301 so dis-'` posed with reference to the shoulders A. andi 30() when bring" moved from to the'shoulder 0 ,'cannotbe he shoulder B withot-being 'l the sealing position C. This delay occurs The door loo a given numbervofy them onel above t le other in tandem arrange# iis ultimate pressure of .the atmose art ofthe operatoren when the presser chamber is in communica tion with the atmosphere and While the jar pressers and the consequent sealing of thel closure joint before any air can enter around that joint.

may be performed by means ci suitably arranged weights and levers. rlhe shaft 222 may be mounted to slide vertically in a slot sense, inasmuch as many oi the parts may be reversed, inverted or transposed in many Ways that'will be obvious to the mechanic or designer. The mechanism .herein shown and described may be modiiied as to dimensions, amplitude of movement and in many other obvious Ways to suit various require-4 ments and different4 conditions ofy service.

We claim as our invention :---I` l.l In a gar sealing apparatus, the combination of a jarchamber, a plurality vof jar carrying slides, anda table provided With. guideways 'for the slides, and mounted tol carry/the slides transversely, whereby they are successively carried into horizontalaline-y ment With the' jar chamber topermit them/` to be transferred horizontally from the tab e to thechamber.

2. In a jar sealing apparatus, .the.combination of a jar chamber, a 'plurality of jar carryingjslides vand a turn table rovided With a guideway for each of the slides, the turn table being pivoted at oneside of, the center .of thepathwayof the 'said-slides, whereby the slides may .be brought successively intohorizontal alinement With the 'j ar chamber. l l

.In la jar sealing'apparatus, the combi` nation of al jar chamber, aplurality of jar carrying slides,` a vturn table provided With a guide for each slide, and a pivotal support for the turntable located between 'the guidezways, and at one side of the centerline of the jar chamber, whereby the slides are by rotation of'l the. table ,carried successivf'ely into y horizontal-"alinement Withthe jar chamber.

4. In jar sealing apparatus, the combina'- tion of a jar chamber, a pair of jarcarrying slides,` a turntable for supporting one of the slides in -alinement with the jar chamber, and

supporting'the other slide inposition to be brought into similar alinement' by swinging the turntable, 'meansror locking the, turn- The functions of the springs herein shown movement of the slides when outiof the jar chamber.

5V.v In jar sealing apparatus, the combina# they are' drawn tionof a jar chamber, a door for hermetically sealing the jar chamber, a jar carrying slide, guideways for supporting and guiding the slide through the doorway into the jar cham'- ber, jar holding trays supported by theslide, and suitable iilling pieces resting upon the bottom of the slide, .and supporting lthe trays, to raise the tops of jars of 'different heights to a predetermined level.

6. In jar sealing apparatus, the combina.- tion of a'iar chamber, a pair of jar carrying slides, rollers on Whichthe slides rest, and a turntable'ior carrying the .rollers and supe' porting one of the slides'in alinement with the jar chamber While supporting the other Itable When either slide is in alinement with l the jar chamber, and stops forstopping the slidein position to be brought/into similar valinement by swinging the turntable.

7. In jar sealing apparatus, the combina- I `tion of a jar chamber, a pair of jar-carrying slides, a turntable for supporting one of the slides in alinement with the jar chamber and lfor supporting the otherjslidein position to -be brought into similaralinement by swing-l ing the turntable, 'and side guides on the i yieldin'gly 4hold the door away from the jar chamber. f 9. In jar ,sealin apparatus', the combination of a jar cham 6.118 doorcarriagqa'door suspended from the carriage, springs tending to lhold the tcp ci the door out of contacty with the jar chamber, and a guide rail parallel to the path of the door to coniine the bottom.

l0. In jar sealing. apparatus, door mechanism therefor', having in combination a door for hermetiealfly closing the jar sealing cham# ber, toggle mechanism ,acting upon different portions` of thedoonand a iioating support for the-toggle mechanism for substantially equalizing its pressure upon the different portionsot' the door'.

11`.`- Injar sealin apparatus, the combination-of ka jar cham er, a door, clamping devices operatingl on diiierent portions of the door, and- 1 means including.V an eoualizing toggle device ior distributing the clamping pressure on the different portionsof the door.

12. 'In 'j ar sealing apparatus, door'- mechanism therefor having in combination a door for hermetically closing the jar sealing chamberthe door, and a floatmesupport for the toggle mechanism', located tween ,the opposing portions thereof, for distributing the pressure a t seneca of the toggle' mechanism with substantial quality *upon the different portions of the OI; l l jar sealing apparatus, door-mechan- 'j therefor, having' in combination a door' `fQEl1Bfnetically closing the jar sealing chamber'of the' apparatus, toggle devices acting in 'opposite 'directions from a commoncenter, upon-different portions of the door', and a i floating7 support for l @mounted-to yield substantially-in the line 'of theopposing pressures to substantially equalize them'.

' ,i 14. ,In jar 'sealing apparatus, the combination of a jar'chamber, a door carriage, a door pported by the carriage, and means includtOggle-joint device for 4'clamping the door algainst the jar chamber. t

`15. n jar sealing apparatus, the combination of a jar chamber, a door carriage, ado'or supported by the carriage and means includ! ving 'van adjustable to'gge-joint device for clamping the door lagainst the jar chamber.

v16. 'In jar sealing apparatus, the combina- 5 :tion of a jar cha supported by the carriage, and means including two toggle- Reint devices acting from a l" common center for clamping'the door against the vjar chamber. i

3 o 1-7. In jar sealing apparatus, the combina- `tion 'of a jar chamber, a door carriage, a door up'ported by the carriage, and means includl'ing two toggle-joint devices vacting 'from a Y pivotally sup orted common center for '8,5 clamping the oor against the jar chamber.

Y 1,8. In jar sealing apparatus, the combination of a jar chamber, adoor carriage, a door supported by the carriage, means including 'two toggle-joint devices acting from a comgq., mon center for clamping the door against the jar chamber, and means for supporting the said center for equalizing movement. 19. In jar sealing apparatus, the combination of a jar chamber, 'a door carriage, a door 1145 supported by'the carriage dogs engaging the` door, and means form ving the dogs to clamp the door against t e jar chamber.

20. In jar sealing apparatus, the combination 0f a j-ar chambena door carriage, a door ,50 sup Orted by the carriage, dogs engaging wit the door, and a toggle-joint device for -moving the dogs to clamp thel door against Ithe-jar chamber. Y 21. In jar sealing apparatus, the combinationofa jar chamber, a door carriage, a door for the jar chamber supported by the car.-

riage, dogsengaging with the door, and twotoggle )oint devices which act on the dogs- `from a common center to clamp the door 46() against the jar chamber.

22. In )ar sealing apparatus, the combination of a jarl chamber, a door carriage', a door' sup orted by the carriage", 'dogs engaging wit the door, two toggle-j cint devices which the toggle ,device mbei, a door carriage, a doorA act on the dogs from a vcommon center to clamp the door against thej ar chamber, and means fo'rsupporting the common center for equalizing movement i 23. In Jar sealing apparatus, the combination of a jar chamber, a door carriage, a door supported by the carriage, dogs-'engaging with the door. and' two toggle-joint devices which act on t'ue dogs from a pivotally supl ported coinmdn center, to clamp Vthe, door against the jar chamber. e

24. In 1ar sealing apparatus, the combination of a jar chamber, a door carriage, a door;

supported by the carriage, dogs engaging with the door, two toggle-joint devices which act 'on' the dogs from a common center to clampthe door against the jar chamber, and a lever for. operating the 'toggle-joint devices.

25. In jar sealing apparatus, the combinatin of a jar chamber', a door carriage, a door wit the door, two toggle-joint'doviccs which act on thedogs from a common center' to clamp the door against the jar chamber, and eounterb alancing means for the weight of the toggle-joint devices'.

' 26. In jar sealing apparatus, thecombination of a jar chamber, a door carriage, a door for the jar chamber su ported by the carriage, dogs engaging wit the door, two toggle-joint devices which act on the dogs from a common center to clampthe door'against the j'ar chamber', and adjusting means for the A,toggle-joint devices and their connected parts; Y

27. In-jar sealing apparatus, the combination of a jar chamber, a door carriage,'a door supported by the carriage, tivo toggle-joint devices and connections acting on the dogs from a common center, and means for varying the length of the' connections.

28; In jar sealing apparatus, the combination of a jar chamber and a sealing carriage, removably contained within the jar chamber, comprising a base and a presser chamber provided withha plurality of independently movable pressers operated by atmpspheric pressure. 1 f

.29. In jar sealing apparatus, the combination of a jar chamber, a plurality of independently-movable jar pressers, a carriage removab y contained within the jar chamber, and having thejar pressers attached thereto, and fluid-pressure actuated means for operating thepressers.

tion of a jar chamber, a plurality of inde-l pendentl -movable "arressers, a carriage rsuplported. by the carriage, dogs engaging csi removab y centaine Wit in the 'ar chamber and havin the jar pressers attac ed thereto, and an inc ined ca -leveling surface adjacent to the pressers, to evel the individual caps as they are moved toward the pressers.

'31. In jar sealing apparatus, the combina- 1 the operating movements at predetermined m'ovably'contained within the jar chamber,

Amovable jar-pressers operated by atmoshaving an exhaust port 255, Aan atmos here ric pressure, and a cap-leveling device near the front of the presser chamber located to level-the caps as' they are moved toward.

the pressers. p y

32'. ln jar sealing) apparatus, the combination of a jar cham er, a sealing carriage reand com rising a base and a' presser chamber provide with a plurality 'o independently v'pheric pressure, and means for'connecting tther presser chamberA to exhausting apparatus.

33. ,In vacuum sealing apparatus, a valve p0rt 258,and two chamber ports 256' ant 257, said valve being provided'with means for closing theexhaustport and the atmosphere port independently of each other, and for connecting the two chamber ports either with the exhaust port or with the atmosp'here p ort. .Y

. 34. n vacuum sealing apparatus, a valve having an exhapst port 255, an atmosphere port 258, and twdchamber ports 256 and 257, said valve being provided with means for closing. the exhaust port and the atmosphere port independentlyof each other, and for connecting the two chamber ports either with the exhaust port. or with the atmosphere port, said means being adapted also to connect the chamber port 256 either with the exhaust port or with the atmosphere port while keeping the other chamber port 257 closed.' f

35. lnvacuum sealing apparatus, the com- -oination with a valve having an exhaust port, an atmosphere port and two chamber ports, of means for'bringing the ports into proper coincidence and means for arresting positions.

36. In vacuum sealing apparatus, the combination with a valve having an exhaust port, an atmosphere port and. two chamber ports, of means for bringing the ports into proper coincidence, and means forflimiting the valve-o erating movement in both direcF tions and or arresting it at predetermined intermediate positions. n

37. In jarsealinfr apparatus, the combination of a jar cham er, a presser' chamber, a valve, a passage connecting the valve to the jar chamber, a passage connecting the valve to the presser chamber, Ya passage connecting the valve to an exhausting apparatus, a passage 'connecting the valve to the atmosphere, and means for operating the valve to close the exhaust passage and the atmosphere pasovable Jar-pressers operated by atsage independently of each other and toconf ne'ct the two chamberpassages either with the exhaust passage or with the atmosphere passage; r y I 38., ln jar sealin apparatus, the combination of a jar cham er, a presser-chamber, a valve, a passage connecting the valv/e to the jar cham er, apassage connectingthe valve to the presser chamber, a passage connecting the valve to an exhausting apparatus, a passage connecting the va/Ive, to the atmosphere,

means for operatingthe valve to close they 'exhaust indepen ently of each other and to connect the two chamber passageseitherwith the ex-- assage and the atmosphere passage haust passage or with the atmos here passage, said means being adapted a-so to conneet the presser chamber passage either with,

the exhaust passage or with the atmosphere passage While keeping the, jar .chamber passage closed. 4

39. In jar sealinfr apparatus, the combination of'a jar cham er, a presser chamber, a-

valve, a 1 assage connecting the valve to the jar cham er, a assage connecting the valve to the resser c amber, a passage connecting the va veto an exhausting apparatus, a-passage connecting the valve to t e atmosphere, meansfor operating the valve to bring the assages intoroper coincidence, and means Forarresting t e valve operating movement at predetermined positions.

40. In jar sealin apparatus, the combination of a jar cham er, a presser chamber, a valve, a passage connecting the valve-to the jar chamber, a passage connecting the valve to the` resser chamber, a passage-connecting theva ve to an exhausting ap aratus, a passage connecting the valve to t e atmosphere,

passages into proper coincidence, and means means foroperating the valve to bring the 41. ln j ar sealing apparatus, the combination of a jar chamber, a presser chamber, apassage for connecting with air exhausting apparatus, a valve comprising a plug and a casing, a lever to oscillate the plug, a latch connected Withthe lever, and a periphera/llyshouldered plate to cooperate with the latch in limiting the oscillationl of the plug in4 both' directions and to arrest the movement ofthe plug at predetermined intermediate oints.

42. ln vacuum sealing apparatus, t c coinbination of a jar chamber, a presser chamber,

passages connecting with means for exhaustmg both chambers, and means for readmltting air independently to the two chambers.

43, In vacuum sealing apparat-us, the combination of'a j ar chamber, a presser chamber, passage-s connecting with means for exhaust-'1 ing both chambers, an air Inlet and a valvel provided with connections leading independva ve havingl a pluralit ently to the two chambers, whereby air may be admitted to one chamber Without admiting both chambers, and an air inlet valvev provided with independent connections to the two chambers and adapted to admit the air through one connection in advance of admittin it to the-other connection.

' 45. n vacuum sealing apparatus, the combination of a ar chamber, a presser chamber,

assa es connecting with means for exhaustin t 1e chambers, .and means including a of ports for readnitting air independent y tothe two cham- 46. In vacuum sealing apparatus, the combination of a jar chamber, a presser chamber, anl air inlet valve having independent air connections to the two chambers, the valve being provided with a pluralit of erts for admitting the air first to one c am er and then to the other chamber. r

47. In vacuum sealing apparatus, the combination with a valve having an air inlet, aV connection with exhausting apparatus, and a plurality of connections to be served by the said inlet and' exhaust connections, the valve being provided with' ports for connecting either the exhaust or the inletA with one or both of the said plural connections.

l4:8. In vacuum sealing apparatus, the combination of a valve providedwith an air inlet, an exhaust outlet and a plurality ofconnections to be served by the said inlet and exhaust, the valve/being provided with orts for connecting the air inlet and the ex aust outlet independently of each other, with one or both of the said plural connections.

y4:9. 'In vacuum sealing ap aratus, the combination of a valve'provide with an air inlet, an exhaust outlet, and a pluralityot connections to be served by the said inlet and exhaust, `the valve being provided with ports,

which as the valve is o erated first connects the exhaust outlet wit the plural connections, and then connects the air inlet first' nections disposed at substantial right angles 55.

with each other, and a valve plug provided with four ports communicating with the said connections, dsubstantially as described, whereby one'of the said connections may be put in communication simultaneously with a plurality of the other connections, and where- `y another set of connections may be put in communication with the two irst named conneetions, one after the other.

5 1. In a iar sealing apparatus, the combination of a Jar chamber and pneumatic. pressure sealing apparatus mounted for traveling movement into and out of the jar chamber.

52. In jar sealing apparatus, the combina- I tion of a jar chamber, 'pneumatic sealing aparatus mounted for travelmg movement into and out of the chamber, and means for connecting the said apparatus with its pneu-4 matic operating means when in position in the chamber.

53. In jar sealing apparatus, the combination of a chamber pneumatic sealing apparatus, a carriage on which the said apparatus' for its traveling movement into and out of the chamber.

55. `In j ar sealing apparat-us', the combination of a chamber, pneumatic sealing apparatus mounted for traveling movement into and out of the chamber, means'for establishing pneumatic connection with the said apparatus through the wall of the chamber when the a paratus is within the chamber, and ways or guiding and supporting the said apparatus for its traveling movement into and` out of the chamber. i

56. In jar sealing apparatus, the combination of pneumatic pressure sealing apparatus mounted for traveling movement into and out of the chamber, means external to the chamber for supporting and guiding the jars to and from the chamber, provided also with ways for guiding and supporting the sealing a paratus in its travel-to and from the cham er.

57. In 'jar sealing apparatus, the combination of a chamber, pnuematic pressure sealing apparatus mountedV for traveling movement into and out of the chamber, means including a turntable for supporting and guiding the jars while being transferred to and from the chamber, provided also with ways for supporting and guiding the jar'sealing apparatus in its traveling movement from and to the chamber:

58. In jar sealing apparatus, the combination of a chamber, a frame external to the chamber provided with a turntable for supporting the jars lWhile being transferred to and from the chamber, the frame being also provided with ways for guiding and supporting the jar sealing apparatus during its traveling movement into and out of the chamber.

59. In jar sealing apparatus, the combination of a chamber, pnuematic pressure 

